python string formating problem with including "{ }" part of the string

Question

i try to format the string to be:

${name123}

without string quotes between curly brackets. what i try to do :

dbname ="name123"
 db_name = f'\${ {dbname} }'
 print(db_name)

but the result is :

\${'name123'}

also i try with format :

dbname ="name123"
 db_name = f'\${ {0} }'.format(dbname)
 print(db_name)

but the result is :

\$name123

Answer 1

Try:

dbname = "name123"
db_name = "${{{}}}".format(dbname)
print(db_name)

Prints:

${name123}

Answer 2

Try:

a = 'name123'
b = ('${' + a + '}')
print(b)

Prints:

${name123}